Kofmsp.dll New! May 2026

The file kofmsp.dll is a Dynamic Link Library (DLL) associated with the Kerio Connect Outlook Connector (KOC). It acts as a Messaging Application Programming Interface (MAPI) service provider, allowing Microsoft Outlook to synchronize and communicate with a Kerio Connect mail server. Technical Function

This DLL is responsible for the transport and storage provider services within Outlook. When you add a Kerio Connect account to an Outlook profile, kofmsp.dll handles the background data exchange for emails, calendars, and contacts. Common Issues and Error Messages

Users typically encounter this file through a specific error message when opening Outlook:

"MAPI was unable to load the information service KOFMSP.DLL. Be sure the service is correctly installed and configured."

This error usually indicates that the Kerio Outlook Connector is corrupted, or a remnant of a Kerio profile is interfering with Outlook’s startup. According to troubleshooting guides on the Microsoft Q&A forum, simply uninstalling the Kerio software often does not resolve the issue because the registry entries and Outlook profile settings remain. Recommended Fixes

If you are experiencing errors related to this file, you should follow these steps:

Remove the Kerio Profile: Go to Control Panel > Mail > Show Profiles. If you are no longer using Kerio, remove the profile associated with it.

Reinstall the Connector: If you still use Kerio, download the latest version of the Outlook Connector from your Kerio Connect server's web interface or the GFI/Kerio Support Portal and perform a clean installation.

Repair Office: Sometimes, MAPI errors require a repair of the Microsoft Office suite to re-register core messaging components.

What is kofmsp.dll?

"kofmsp.dll" is a Dynamic Link Library (DLL) file that is associated with the Microsoft Office suite, specifically with the Microsoft Office XP and Office 2003 versions. The file is also known as the "Microsoft Office XP/2003 MSP (Microsoft Software Protection) DLL".

Functionality

The "kofmsp.dll" file is responsible for providing software protection and licensing functionality to Microsoft Office applications. It helps to verify the authenticity and validity of the Office software, ensuring that it is genuine and properly licensed.

Common Issues

Here are some common issues that may occur with the "kofmsp.dll" file:

1. Missing or corrupted file: If the file is missing or corrupted, it can cause errors when running Microsoft Office applications, such as "The file kofmsp.dll is missing" or "kofmsp.dll not found".
2. Compatibility issues: The file may not be compatible with newer versions of Windows or other software, leading to errors or crashes.
3. Virus or malware infection: The file can be infected by viruses or malware, which can cause system instability or security issues.

How to fix issues with kofmsp.dll

Here are some steps to resolve common issues with the "kofmsp.dll" file:

1. Re-register the file: Try re-registering the file using the Windows Registry Editor (Regsvr32.exe). Open a Command Prompt as an administrator and run the following command: regsvr32 kofmsp.dll.
2. Update Microsoft Office: Ensure that Microsoft Office is up-to-date, as newer versions may include fixes for issues with the "kofmsp.dll" file.
3. Run a virus scan: Run a full system scan using an anti-virus program to detect and remove any malware or viruses that may be infecting the file.
4. Reinstall Microsoft Office: If the issue persists, try reinstalling Microsoft Office to replace the corrupted or missing file.
5. Contact Microsoft Support: If none of the above steps resolve the issue, contact Microsoft Support for further assistance.

How to remove kofmsp.dll

If you no longer need Microsoft Office or want to remove the file, you can try the following:

1. Uninstall Microsoft Office: Uninstall Microsoft Office from the Control Panel or using the Microsoft Office uninstall tool.
2. Delete the file: Once Microsoft Office is uninstalled, you can delete the "kofmsp.dll" file from the system folder (usually located in C:\Windows\System32).

Precautions

Before making any changes to the "kofmsp.dll" file or Microsoft Office installation:

1. Backup your system: Create a system restore point or backup your important files to prevent data loss.
2. Verify file ownership: Ensure you have administrative privileges and ownership of the file and Microsoft Office installation.

Conclusion

The "kofmsp.dll" file is an essential component of Microsoft Office XP and Office 2003, providing software protection and licensing functionality. While issues with the file can occur, they can usually be resolved by re-registering the file, updating Microsoft Office, or running a virus scan. If you're no longer using Microsoft Office, you can safely remove the file by uninstalling the software and deleting the file. Always exercise caution when making changes to system files and software installations.

The file kofmsp.dll is a core component of the Kerio Outlook Connector (Offline Edition), often abbreviated as KOFF. It acts as a Messaging Application Programming Interface (MAPI) provider that allows Microsoft Outlook to synchronize and communicate with a Kerio Connect mail server. Technical Overview kofmsp.dll

Purpose: It is an information service provider DLL that enables offline synchronization between Outlook and Kerio Connect accounts.

Developer: It is developed by GFI Software (formerly Kerio Technologies).

Default Location: Typically found in C:\Program Files (x86)\Kerio\Outlook Connector (Offline Edition)\. Common Issues and Error Messages

Users typically encounter this file when it fails to load, causing Outlook to crash or refuse to open. Common error messages include:

"MAPI was unable to load the information service KOFMSP.DLL. Be sure the service is correctly installed and configured".

"Cannot open your default e-mail folders. An unexpected error has occurred".

"This MAPI provider DLL might be harmful to your system" (typically seen in newer Outlook versions like Outlook 2016/2019 due to stricter security protocols). Troubleshooting and Fixes

If you are experiencing errors related to this file, GFI Support and Kerio Support recommend the following steps: Reinstalling Kerio Outlook Connector - KerioConnect - GFI

If you've encountered the error message "MAPI was unable to load the information service KOFMSP.DLL," you aren't alone. This specific dynamic link library (DLL) is a critical component for users of the Kerio Outlook Connector (KOFF), a tool that allows Microsoft Outlook to sync with a Kerio Connect mail server.

When this file goes missing, becomes corrupted, or is blocked by system updates, Outlook typically fails to open, leaving you with a "set of folders cannot be opened" warning. What is KOFMSP.DLL?

The kofmsp.dll is a "Message Service Provider" file. Its primary job is to act as a bridge between your local Microsoft Outlook installation and the Kerio Connect server. It allows for offline synchronization, meaning you can manage your emails even without an active internet connection, and then sync them once you're back online.

Default File Path: C:\Program Files (x86)\Kerio\Outlook Connector (Offline Edition)\kofmsp.dll Primary Application: Kerio Outlook Connector (KOFF) Common Causes for the Error

kofmsp.dll (Kerio Outlook Connector Message Service Provider) is a critical Dynamic Link Library file used by the Kerio Outlook Connector (Offline Edition), commonly known as KOFF.

If you are seeing errors related to this file, it usually means your Outlook is having trouble talking to your Kerio Connect mail server. Here is a deep dive into what this file does, why it fails, and how to fix it. What is kofmsp.dll?

In the world of Microsoft Outlook, "Message Service Providers" (MSPs) are the translators that allow Outlook to communicate with non-Microsoft mail servers. While Outlook natively speaks "Exchange," it needs a plugin to handle Kerio Connect’s unique synchronization protocol.

The kofmsp.dll file is the core engine of that plugin. It manages:

MAPI Integration: It plugs directly into the Messaging Application Programming Interface (MAPI) to make Kerio folders look and act like native Outlook folders.

Offline Sync: It handles the local caching of your emails, allowing you to read and draft messages even when you aren't connected to the internet.

Bi-directional Sync: It ensures that when you delete an email in Outlook, it’s deleted on the server (and your phone), and vice versa. Common Error Messages

When this DLL file is missing, corrupted, or blocked, Outlook will often refuse to open. You might see errors like:

"Cannot open your default e-mail folders. MAPI was unable to load the information service KOFMSP.DLL."

"The set of folders cannot be opened. An unexpected error has occurred." "KOFF failed to register with Error 1904." Why Does It Break? There are three main culprits behind kofmsp.dll failures:

Windows Updates: Major Windows updates (especially those affecting the .NET Framework or core system libraries) can sometimes "un-register" the DLL or change permissions in the folder where it lives. The file kofmsp

Antivirus Interference: Because the DLL acts as a "middleman" for your data, some overzealous antivirus programs flag its behavior as suspicious and quarantine the file.

Multiple Outlook Versions: Having pieces of old Office installations (like an old Office 2013 trial alongside Office 2019) can cause "MAPI conflicts," where Outlook tries to load the wrong version of the connector. How to Fix kofmsp.dll Errors 1. The "Clean" Reinstall (Most Effective)

The most reliable fix is to completely remove the connector and let the Kerio server provide a fresh copy. Close Outlook and all GFI/Kerio processes.

Uninstall Kerio Outlook Connector via the Windows Control Panel.

Navigate to your Kerio Webmail URL (e.g., https://yourcompany.com).

Look for the "Integration with Windows" or "Download Tools" link on the login page. Download and run the installer as an Administrator. 2. Clear the KOFF Cache

Sometimes the DLL is fine, but the data it's trying to read is corrupted.

Go to %LOCALAPPDATA%\Kerio\Outlook Connector and rename or delete the folder associated with your profile. When you restart Outlook, the connector will rebuild the local database from the server. 3. Register the DLL Manually

If the file exists but Windows "forgot" it's there, you can force-register it: Open the Command Prompt as an Administrator.

Type regsvr32 "C:\Program Files (x86)\Kerio\Outlook Connector\kofmsp.dll" (adjust the path if yours is different) and hit Enter. Technical Compatibility Note

If you are still running Windows XP, be aware that modern versions of the Kerio Outlook Connector are no longer supported. If you encounter kofmsp.dll errors on XP, the official recommendation from GFI Support is to upgrade your OS to at least Windows 7 or higher.

Are you currently seeing a specific error code (like 0x800...) alongside the DLL warning? Reinstalling Kerio Outlook Connector - KerioConnect - GFI

kofmsp.dll is a component of the Kerio Outlook Connector (Offline Edition) that functions as a MAPI provider for synchronizing Microsoft Outlook with Kerio Connect, particularly for offline access. Errors involving this file are commonly resolved by reinstalling the connector or addressing MAPI security restrictions. For technical guidance, consult the Kerio Outlook Connector Guide GFI Support Reinstalling Kerio Outlook Connector - GFI Support

KOFF can cause Outlook to freeze or crash with such warning: "Cannot open the Outlook window. The set of folders cannot be opened. GFI Support

8. Removal and safe cleanup

• Best approach: Uninstall the parent application via Settings → Apps or Control Panel.
• Manual removal:
  1. Stop services/processes that have the DLL loaded (use Task Manager / Process Explorer).
  2. Unregister (if COM-registered):

     regsvr32 /u "C:\path\to\kofmsp.dll"
     

  3. Delete the file and clean related registry keys (careful; back up registry first).
• Reboot and verify no residual references (Autoruns).

Step 3: Re-register the DLL

If the file exists but isn't recognized, register it manually:

1. Open Command Prompt as Administrator.
2. Run:

   regsvr32 "C:\Program Files\Kofax\Capture\Bin\kofmsp.dll"
   

3. You should see: "DllRegisterServer succeeded".

For 64-bit systems with 32-bit Kofax, use:

cd C:\Windows\SysWOW64
regsvr32 "C:\Program Files (x86)\Kofax\Capture\Bin\kofmsp.dll"

6. Troubleshooting common issues

• Missing DLL error (e.g., "kofmsp.dll was not found"):
  1. Do not download DLLs from random websites. Instead reinstall the application that installs it or run System File Checker if it’s part of Windows:

     sfc /scannow
     

  2. Reinstall or repair the host application.
  3. Run Windows Update and any application updates.
• DLL load failures or crashes:
  1. Check Event Viewer (Application/System) for faulting module entries.
  2. Use Process Monitor to trace file/registry access failure.
  3. Verify correct bitness (32-bit vs 64-bit) — 32-bit processes need 32-bit DLLs in SysWOW64; 64-bit processes need 64-bit DLLs in System32.
• Version conflicts:
  1. Use Side-by-Side (SxS) manifests if the DLL is a private assembly.
  2. Reinstall or roll back updates to the application or drivers that rely on it.

Step 1: Scan for Malware

Before reinstalling anything, rule out infection. Use:

• Windows Defender Offline scan
• Malwarebytes Free
• Microsoft Safety Scanner

If kofmsp.dll is flagged as malware, quarantine and remove it, then repair your Kofax software.

5. How to Fix Errors

If you are encountering errors related to this file, do not download the DLL from random "DLL Download" websites. These sites often host outdated or malicious versions of files.

Recommended Fixes:

• Reinstall the Software: The most reliable fix is to uninstall and reinstall the Kofax software or the scanner driver suite that uses it. This will replace the missing file with the correct version.
• Repair the Installation: Many Kofax installers have a "Repair" option in the Control Panel (Programs and Features). Run this to restore missing files without a full reinstall.
• Update Drivers: If the error started after a Windows Update, check the Kofax support website for updated drivers or patches compatible with your version of Windows.
• Re-register the DLL (Advanced): If the file exists but isn't working, open the Command Prompt as Administrator and type: regsvr32 kofmsp.dll (Note: This only works if the file is physically present on the disk).

Step 6: Copy a Known Good Version from Another Machine

If you have the same Kofax version on a working PC:

1. On the working PC, navigate to the Kofax Bin folder.
2. Copy kofmsp.dll to a USB drive.
3. On the affected PC, paste it into the exact same path.
4. Overwrite the existing file (if any).
5. Register it using regsvr32 as shown above.

Step 4: Run System File Checker

Corrupted system DLL loaders can mimic a missing kofmsp.dll error. Run:

sfc /scannow

After completion, reboot and test the Kofax application. Missing or corrupted file : If the file

11. When to seek further help

• If the DLL is unsigned and exhibits suspicious behavior, consult a security professional or run an incident response.
• For application-specific bugs tied to kofmsp.dll, contact the vendor (use file properties to identify vendor).

If you want, I can:

• Inspect a specific kofmsp.dll file you provide (hashes, signature, exports) — tell me the file path or paste the SHA256.
• Produce a short OS-specific removal script or a step-by-step incident response playbook.

Understanding Kofmsp.dll: What It Is and How to Fix Common Errors

If you’ve encountered a popup error mentioning kofmsp.dll, you’re likely dealing with a missing or corrupted file required by a specific software application. While seeing "DLL not found" messages can be frustrating, these issues are usually straightforward to resolve.

Here is a comprehensive look at what this file is, why it causes trouble, and how to get your system running smoothly again. What is kofmsp.dll?

The file kofmsp.dll is a Dynamic Link Library (DLL) file. DLLs are "shared" files that contain instructions and functions that multiple programs can call upon to perform specific tasks. Instead of every program writing its own code for a common action, they simply "link" to this file.

This specific DLL is most commonly associated with Kofax software (often used for document imaging, scanning, and automation) or certain specialized printer and scanning drivers. Common Error Messages You might see variations of the following errors: "The file kofmsp.dll is missing." "Kofmsp.dll not found."

"Cannot start [Program Name]. A required component is missing: kofmsp.dll."

"Error loading kofmsp.dll. The specified module could not be found." Why Do These Errors Happen?

There are several reasons why this file might go missing or stop working:

Accidental Deletion: You or another user may have manually deleted the file or the folder containing it.

Software Uninstallation: Uninstalling a related program might have mistakenly removed the shared DLL.

Corrupt Installation: An update or a partial installation of software (like Kofax VRS) failed to register the file correctly.

Malware Interference: Occasionally, viruses can target or impersonate DLL files, leading antivirus software to quarantine or delete them. How to Fix kofmsp.dll Errors 1. Reinstall the Associated Program

Since this file is typically part of a specific software suite (like Kofax), the cleanest way to fix it is to reinstall the application. Go to Settings > Apps > Installed Apps.

Find the software (e.g., Kofax, your printer driver, or document management tool).

Select Uninstall, restart your computer, and then install the latest version from the official manufacturer's website. 2. Restore from the Recycle Bin

If you recently performed a "cleanup" of your folders, check your Recycle Bin. If you find kofmsp.dll there, right-click it and select Restore. 3. Run a System File Checker (SFC) Scan

Windows has built-in tools to repair missing or corrupted system-related files. Type cmd in your Windows search bar. Right-click Command Prompt and select Run as Administrator. Type sfc /scannow and press Enter. Wait for the process to finish and restart your PC. 4. Update Drivers

Because kofmsp.dll is often linked to scanning hardware, ensuring your scanner or printer drivers are up to date can resolve the conflict. Visit the support page for your hardware brand (HP, Brother, Canon, etc.) to download the latest drivers. 5. Register the DLL Manually

If the file exists on your computer but isn't being recognized, you can try re-registering it: Open the Command Prompt as an administrator. Type regsvr32 kofmsp.dll and press Enter. A Word of Warning: DLL Download Sites

You may find websites offering a free download of "kofmsp.dll." Avoid these.Downloading individual DLL files from third-party sites is a major security risk. These files can contain malware or be outdated versions that cause even more system instability. Always obtain the file through official software installers or system updates.

Errors involving kofmsp.dll are typically just a sign that your document processing or scanning software needs a quick "refresh." By reinstalling the software or updating your hardware drivers, you can usually clear the error and get back to work in minutes.

Are you seeing this error when launching a specific program, or does it happen randomly while you're using Windows?

Kofmsp.dll is a specific Dynamic Link Library (DLL) file associated with Kofax software, primarily their scanner driver suites and capture utilities (such as Kofax VRS or Kofax ImageControls).

Below is a detailed breakdown of what this file is, why it might be appearing on your system, and how to handle issues related to it.